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Burkholderia megalochromosomata sp nov., isolated from grassland soil

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Baek, Inwoo; Seo, Boram; Lee, Imchang; Lee, Kihyun; Park, Sang-Cheol; Yi, Hana; Chun, Jongsik

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Society for General Microbiology
International Journal of Systematic and Evolutionary Microbiology, Vol.65, pp.959-964
A Gram-stain negative, rod-shaped, non-spore-forming, obligate aerobic bacterial strain, JC2949T, was isolated from grassland soil in Gwanak Mountain, Seoul, Republic of Korea. Phylogenetic analysis, based on 16S rRNA sequences, indicated that strain JC2949(T) belongs to the genus Burkholderia, showing highest sequence similarities with Burkholderia grimmiae R27(T)(98.8%), Burkholderia cordobensis LMG 27620(T) (98.6 %), Burkholderia jiangsuensis MP-1T(T) (98.6 %), Burkholderia zhejiangensis OP-1(T) (98.5 %), Burkholderia humi LMG 22934(T) (97.5 %), Burkholderia terrestris LMG 22937(T) (97.3 %), Burkholderia telluris LMG 22936(T) (97.2 %) and Burkholderia glathei ATCC 29195(T) (97.0 %). The major fatty acids of strain JC2949(T) were C-18:1 omega 7c, summed feature 3 (C-16:1 omega 7c and/or C-16:omega 6c) and C-16:0. Its predominant polar lipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol and an unknown amino phospholipid. The dominant isoprenoid quinone was ubiquinone Q-8. The pairwise average nucleotide identity values between strain JC2949(T) and the genomes of 30 other species of the genus Burkholderia ranged from 73.4-90.4%, indicating that the isolate is a novel genomic species within this genus. Based on phenotypic and chemotaxonomic comparisons, it is clear that strain JC2949(T) represents a novel species of the genus Burkholderia. We propose the name for this novel species to be Burkholderia megalochromosomata sp. nov. The type strain is J02949(T) (=KACC 17925(T)=JCM 19905(T)).
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